Acetylene is a hydrocarbon molecule H₂C₂, the H & C stand for ________ __________.

To light the torch, the __________ valve must be opened first.

The acetylene is adjusted so the smoke disappears.

The oxygen valve is opened on and adjusted to obtain a __________ flame

When shutting down the torch, the fuel gas is turned off first.

With the oxygen and acetylene properly adjusted the temperature of the flame is ____________ degrees.

When starting to cut steel, the blue cones are off the plate 1/8" and waiting for the steel to turn red.

At the _____________ temperature, steel is ready to burn.

When the steel is hot enough, the cutting oxygen lever is pushed and the steel starts to ___________.